gates



Patented Feb. 7, |899. P. W. GATES.

BUCK AND URE BHEAKER.

' (Application filed Mar. v18, 1898.)

No. slssn.

2 Sheets-Sheet I.

No Modell.)

IIIIIIl-lllllllllllllllllll "'illlllllllllll Paiented Feb. 7, |899. P. W. GATES.

Rock AND one BREAKER.

(Application led Mar. 1S, 1898.)

2 Sheets-Sheet 2.

No. 6|s,a6o.

(N0 Model.)

.m W e NITED STATES PATENT OFFICE.

PHILETUS WARREN GATES, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE GATES IRON WORKS, OF SAME PLACE.

ROCK AND ORE BREAKER.

SPECIFICATION forming part of Letters Patent No. 618,860, dated February 7, 1899.

Application led March 18, 1898.

To @ZZ whom it may concern.-

l Be it known that I, PHILn'rUs WARREN GATES, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Rock and Ore Breakers, of which the following is a specification.

My invention relates to that class ofv rock and ore breakers known as gyrating crushers, in which there is a gyrating shaft provided with a crushing-head at its upper portion adapted to crush, break, or grind rock, ore, and similar materials between it and a concave shell. The invention has more particular reference to the means by which this gyrating shaft is oiled, and has for its object the providing of a simple, economical, and efficient gyrating Crusher, with means for automatically keeping up a circulation of oil through the bearings of the gyrating mechanism and the invention consists in the features, combinations, and details of construction hereinafter describedand claimed.

In the accompanying drawings, Figure lis a vertical sectional elevation of a rock and ore breaker provided with my improvements; Fig. 2, a plan sectional view of a portion of the mechanism, taken on line 2 of Fig. l, looking in the direction of the arrow; Fig. 3, a vertical sectional elevation of a portion of the mechanism, taken on line 3 of Fig. 1 and Fig.q 4, a plan view of the cap or cover for the bevel-pinion chamber looking at it from the bottom.

In the art to which this invention relates it is well known that these gyrating rock and ore crushers have a shaft which is gyrated by means of gears at the bottom part and have the upper part of the shaft fulcrumed in some stationary part of the machine. The upper part of the crusheris provided with a crushshell.

ing-head adapted to crush, break, or grind material between it and a crushing or concave In this class of crushers the work is acted on very powerfully by means of a gyrating rolling lever action, so that the force as applied is multiplied many times, and hence extremely high degrees of frictional force are developed at the lower portion of the 5o shaft wherethe power is applied. It becomes Serial No. 675,312. (No model.)

a serious and important question, therefore, toprovide means for supplying oil or lubricant to the moving surfaces, so as to minimize adhesion and frictional force, and thereby prolong the usefulness and add to the efficiency of the machine.

The principal object, therefore, of my invention is to provide means for automatically furnishing a quantity of oil to one or both of the bearings which surround the gyrating shaft.

In constructing a gyrating rock and ore Crusher in accordance with my limprovements I use a frame portion A, of any usual type and construction and of the desired size, shape, and strength to support and contain the operative 'and other mechanisms in position for use. Mounted in this frame is a gyrating shaft B, fulcrumed at b in the spider portion C, the upper portion of which shaft is provided with a head B', between which and the crushing concave or shell D material may be crushed. The power and motion are transmitted to the lower end of the gyrating shaft by means of the bevel-gear E, in which the shaft is journaled, and which meshes or en gages with'a driving bevel-pinion E. This pinion is mounted on a driving-shaft e, which may be provided'with gearing or pulleys 'at its outer end.

, As above stated, it will be noticed from an inspection of Fig. l that the lower end of the gyrating shaft is journaled in this bevel-gear,

so that during the rotationsof the bevel-gear the shaft is gyrated and at the same time permitted to rotate independently upon its axis, so kas to facilitate the crushing of material between the head and concave shell. In order to automatically furnish a continuous supply of lubricant to one or both of the bearing portions which surround the gyrating shaft when the parts arein motion, I surround either a portion or the whole of the bevelgear with the frame portion, so as to provide a main oil-reservoir G, in which oil may be kept in sufficient quantities. The driving bevel-pinion is mounted in an inclosed chamber g, which communicates with the main reservoir, and its teeth dip down into -the body of oil in such reservoir, so that during IOG the rotations of the bevel-pinion the oil is t carried up and thrown with considerable force against the housing. A portion of the oil is thrown into a vertical reservoir g', located to one side of the bevel-pinion, and by means of a channel g3 is led to an oil-cup g5, which surrounds the gyratin g shaft above the hub e of the bevel-gear. It will be noticed by an inspection of Fig. l that the frame portion a, which surrounds the hub of the bevelgear, extends to a point above the same and forms the oil-cup g5, so that during the rotations of the parts a portion of the oil in said cup is retained to lubricate the journals of the bevel-gear hub and gyrating shaft.

As the quantity of oil which is furnished the cup g5 is considerable and apt to be largely in excess of what is necessary to lubricate the journals, it is desirable to provide means by which the surplus oil may be returned to the main reservoir, so as to prevent the llling and overflowing of the oil in the oil-cup. In order to accomplish this result and assist the circulation of the oil to the journals, I provide the frame of the machine, especially the part ct which surrounds the bevel-gear, with a channel g4. This channel has its inlet-opening at a point below the upper edge of the oil-cup and should be of such size as to take care of the surplus oil and prevent the oil in the cup from overflowing. The lower or discharge end of this channel opens into the main oilreservoir above the bevel-gear, so as to discharge the surplus oil into the main reservoir. By this arrangement it will be seenthat when the bevel-pinion rotates, as shown in Fig. 3, the oil is thrown with considerable force into the reservoir g', while a portion of that which is thrown on the inner surface of the cap portion A flows down into the vertical reservoirs until they are lled with a column of oil. The succeeding oil, as it is impelled by the dynamic force of the rotating bevel-pinion, contacts the column of oil in the vertical channel or reservoir g and forces or pushes it, as it were, into and through the channel g3 until it reaches the cup g5, Where a portion of it is used to lubricate the bearing, while the overflow or surplus amount passes down through the channel g4 into the main reservoir G beneath the bevel-gear. The cap A is also flared or funnel-shaped at its ends CL2, so as to concentrate the flying oil and guide it to the vertical chamber or reservoir.

From an inspection of Figs. 2 and 3 it will be seen that a second vertical oil-reservoir g2 is provided. This reservoir is connected with the oil-cup by means of a channel g3, similar to that shown in Fig. 2, so that when the bevel-pinion is rotated in a direction opposite to that shown in Fig. 3 the oil will be thrown with considerable force into the vertical reser- Voir g2, and thus provide for the automatic lubricating of portions of the bevel-gear hub and gyrating shaft no matter in what direction the mechanisms are rotating.

The advantages of my improvements will be apparent to those skilled in the art, in that the destructive action due to excessive frictional force is minimized and the life of the machine or mechanisms prolonged, as well as adding to the efficiency of the machine.

While I have described my invention with more or less minuteness as regards details of construction and arrangement and as being embodied in certain precise forms, I do not desire to be limited thereto unduly any more than is pointed out in the claims. On the contrary I contemplate all proper changes in form, construction, and arrangement. For instance, the return-channel g4 could be dis pensed with and the channel g3 limited in its diameter to such an extent as to feed just sufcient oilto the oil-cup to accomplish the necessary lubrication of the bearings. Again, the oil-cup could be dispensed with and the oil-channel lead direct to the bearing between the hub of the bevel-gear and the frame portion a, while a channel could also be furnished to communicate with the bearing between the gyrating shaft and bevel-gear hub. It is evident, therefore, that departures may be made from the arrangement shown in the drawings to accomplish the same result without in any way departing from the spirit of my invention.

I claiml. In a rock and ore Crusher, the combina tion of a gyrating shaft, a bevel-gear in and by which the shaft is journaled and gyrated, a bevel-pinion meshing with the bevel-gear to drive the same, a frame portion inclosing the bevel gear and pinion and providing a main oil-reservoir beneath such bevel gear and pinion into which the bevel-pinion dips, a vertical reservoir adjacent to the bevelpinion and into which the oil may be forced by the rotating bevel-pinion and provided with a channel leading from the reservoir to the bearing of the gyrating shaft, and a second channel leading from the bearing of the gyrating shaft through the frame portion so as to return the oil to the main reservoir be,- neath the bevel-gear, substantially as de scribed. l

2. In a rock and ore Crusher, the combination of a gyrating shaft, a bevel-gear provided with a hub in and by which the shaft is journaled and gyrated, a bevel-pinion meshing with and adapted to drive the bevel-gear, a frame portion surrounding the bevel gear and pinion providing a main oil-reservoir beneath the bevel-gear into which the bevel-pinion dips, a portion of such frame surrounding the hub of' the bevel-gear and extending above the same so as to form a cup-shaped oil-recess around the gyrating shaft, an oil-reservoir adjacent to the bevel-pinion into which the oil may be thrownA by the bevel-pinion and a channel leading therefrom to the oil-cup surrounding the gyrating shaft so that the impact of the oil thrown on the oil in the oilreservoir forces it into the oil-cup surrounding the gyrating shaft, and a channel leading lEOO IIO

IZO

from the oil-cup to the main reservoir so as to promote the circulation of the oil, substantially as described.

In a rook and ore Crusher, the combination of a gyrating shaft, abevel-gear provided With ahub in and by which the shaft is jonrnaled and gyrated, a bevel-pinion meshing With and adapted to drive the bevel-gear, a frame portion surrounding the bevel gear and pinion providing a main oil-reservoir beneath the bevel-gear into which the bevel-pinion dips, two vertical reservoirs-one at eaoh side of the bevel-pinion-provided with a channel or lChannels leading from the reservoirs to the hub of the bevel-gear to lubrioate the journais surrounding the gyrating shaft and with a second channel leading therefrom to the 1n ain oil-reservoir, substantially as described.

4:. In a rock and ore Crusher, the combination of a gyratin g shaft, a bevel-gear provided With a hub in and by which the shaft is journaled and gyrated, a bevel-pinion meshing With andA adapted to drive the bevel-gear, a frame portion snrroundin g the bevel gear and pinion providing a main oil-reservoir beneath the bevel-gear into which the bevel-pinion dips, two vertical reservoirs-one at each side of the bevel-pinion-provided Withva channel or channels leading from the reservoirs to the hub of the bevel-gear to lubrieate the journals surrounding the gyrating shaft and With a second channel leading therefrom to the main oil-reservoir, and a removable cap for the bevel-pinion chamber provided With narrow end portions to concentrate the iiow of oil to the vertical reservoirs, substantially as described.

PHILET US VARREN GATES.

Witnesses:

THOMAS F. SHERIDAN, THOMAS B. MOGREGOR. 

